Commit Graph

13 Commits

Author SHA1 Message Date
Nicholas Wilson 5639da89a9 [WebAssembly] Reorder synthetic functions to come first
This matches the existing ordering that's been there for globals
for a while (__stack_pointer coming first).

Differential Revision: https://reviews.llvm.org/D44333

llvm-svn: 327286
2018-03-12 15:44:07 +00:00
Nicholas Wilson 4cdf5b8fa0 [WebAssembly] Reorder exports to match symbol table order
This fixes a TODO introduced in rLLD325861.

Differential Revision: https://reviews.llvm.org/D43877

llvm-svn: 326424
2018-03-01 09:38:02 +00:00
Sam Clegg 99eb42c0c5 [WebAssembly] Remove DataSize from linking metadata
This means we don't need to write the linking metadata section
at all for executable (non-relocatable) output.

Differential Revision: https://reviews.llvm.org/D42869

llvm-svn: 326268
2018-02-27 23:58:03 +00:00
Rui Ueyama f05124e60c Use wasm-ld instead of "lld -flavor wasm".
Invoking lld as ld.lld, ld.ld64, lld-link or wasm-ld is preferred
than invoking lld as lld and pass an -flavor option. We have "lld"
file mostly for historical reasons.

Differential Revision: https://reviews.llvm.org/D43407

llvm-svn: 325405
2018-02-16 22:58:02 +00:00
Sam Clegg 37a4a8a4b1 [WebAssembly] Add __data_end link-sythentic symbol.
This is similar to _end (See https://linux.die.net/man/3/edata for more)
but using our own unique name since our use cases will most likely be
different and we want to keep our options open WRT to memory layout.

This change will allow is to remove the DataSize from the linking
metadata section which is currently being used by emscripten to derive
the end of the data.

Differential Revision: https://reviews.llvm.org/D42867

llvm-svn: 324443
2018-02-07 03:04:53 +00:00
Sam Clegg 279c850cf2 [WebAssembly] Fix signature mismatches in test code
Pass --check-signatures to test executions of lld and
fix resulting errors.

Differential Revision: https://reviews.llvm.org/D42661

llvm-svn: 324042
2018-02-02 00:30:03 +00:00
Sam Clegg 70683b2f75 [WebAssembly] Use inline target tripple in test cases
This is somewhat preferable since (in many cases) it allows llc
to be run directly on the .ll files without having to pass the
`-mtriple` argument.

Differential Revision: https://reviews.llvm.org/D42438

llvm-svn: 323299
2018-01-24 03:29:47 +00:00
Rui Ueyama b9b1a522ea Remove trailing whitespace.
llvm-svn: 323287
2018-01-24 00:22:53 +00:00
Sam Clegg 0f0a428738 [WebAssembly] Remove special handling of entry point export.
Its much easier to export it via setHidden(false), now that
that is a thing.

As a side effect the start function is not longer always exports first
(becuase its being exported just like all the other function).

Differential Revision: https://reviews.llvm.org/D42321

llvm-svn: 323025
2018-01-20 01:44:45 +00:00
Sam Clegg 51bcdc2d49 [WebAssembly] Define __heap_base global
This is an immutable exported global representing
the start of the heap area.  It is a page aligned.

Differential Revision: https://reviews.llvm.org/D42030

llvm-svn: 322609
2018-01-17 01:34:31 +00:00
Sam Clegg 5068685678 [WebAssembly] Create synthetic __wasm_call_ctors function
This change create a new synthetic function in the final
output binary which calls the static constructors in sequence.

See: https://github.com/WebAssembly/tool-conventions/issues/25

Differential Revision: https://reviews.llvm.org/D41893

llvm-svn: 322388
2018-01-12 18:35:13 +00:00
Sam Clegg f50534b127 [WebAssembly] Update YAML in tests to match LLVM change
Differential Revision: https://reviews.llvm.org/D41878

llvm-svn: 322122
2018-01-09 21:47:36 +00:00
Sam Clegg 87e61923a4 [WebAssembly] Write out undefined symbol addresses as zero
The addresses of undefined symbols that make it into the final
executable (i.e. weak references to non-existent symbols) should
resolve to zero.

Also, make sure to not include function in the indirect function
table if they are not included in the output.

Differential Revision: https://reviews.llvm.org/D41839

llvm-svn: 322045
2018-01-08 23:39:11 +00:00